/*
 * Copyright 2022 Yan Kun <yan_kun_1992@foxmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cc.otavia.redis.serde

import cc.otavia.buffer.Buffer
import cc.otavia.redis.cmd.CommandResponse

abstract class AbstractResponseSerde[R <: CommandResponse] extends RedisSerde[R] {

    final protected def serializeSimpleError(error: String, out: Buffer): this.type = {
        out.writeByte('-')
        out.writeCharSequence(error)
        out.writeByte('\r')
        out.writeByte('\n')
        this
    }

    final protected def deserializeSimpleError(in: Buffer): String = {
        in.skipIfNextIs('-')
        val len      = in.bytesBefore('\r'.toByte, '\n')
        val errorMsg = in.readCharSequence(len).toString
        in.skipReadableBytes(2)
        errorMsg
    }

}
